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Pretech Corporation manufactures sanitary manholes in sizes from 48" ID on up. We carry a wide variety cast-iron rings & covers. We also stock joint mastic, wrap, manhole steps, adjustment rings and most anything needed for sanitary systems.


In addition to manufacturing a variety of storm manholes, Pretech Corporation also manufactures storm inlets. Our controlled manufacturing environment, along with our on-site testing facility, assures exact specifications are continuously met.


Pretech Corporation manufactures a variety of utility vaults and manholes. Our standard structures are available with many different flare configurations and almost any size duct terminator or opening. We provide on-site inspection to plan delivery and installation.

Specialty Structures

In addition to it's standard line of products, Pretech Corporation manufactures a wide variety of custom items. Our in-house engineers will work with you to design a structure that meets your specific needs.

Reinforced Concrete

Pretech Corporation produces pipe on the most automated drycast machine in the industry. The reinforcing is manufactured on-site with a computer controlled welder.

Box Culvert

Pretech Corporation engineers can work with other professionals and engineering firms to design environmentally friendly storm systems.

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